Merge branch 'main' into healthcare-fix

## Description

Update the GDA source document to clarify that only `AlloyDbReference`,
`SpannerReference`, and `CloudSqlReference` are supported.

## PR Checklist

> Thank you for opening a Pull Request! Before submitting your PR, there
are a
> few things you can do to make sure it goes smoothly:

- [x] Make sure you reviewed

[CONTRIBUTING.md](https://github.com/googleapis/genai-toolbox/blob/main/CONTRIBUTING.md)
- [x] Make sure to open an issue as a

[bug/issue](https://github.com/googleapis/genai-toolbox/issues/new/choose)
  before writing your code! That way we can discuss the change, evaluate
  designs, and agree on the general idea
- [x] Ensure the tests and linter pass
- [x] Code coverage does not decrease (if any source code was changed)
- [x] Appropriate docs were updated (if necessary)
- [x] Make sure to add `!` if this involve a breaking change

🛠️ Fixes #2324

---------

Co-authored-by: gemini-code-assist[bot] <176961590+gemini-code-assist[bot]@users.noreply.github.com>

docs/en/how-to/deploy_toolbox.md

@@ -207,6 +207,7 @@ You can connect to Toolbox Cloud Run instances directly through the SDK.
 {{< tab header="Python" lang="python" >}}
 import asyncio
 from toolbox_core import ToolboxClient, auth_methods
+from toolbox_core.protocol import Protocol
 
 # Replace with the Cloud Run service URL generated in the previous step
 URL = "https://cloud-run-url.app"
@@ -217,6 +218,7 @@ async def main():
   async with ToolboxClient(
       URL,
       client_headers={"Authorization": auth_token_provider},
+      protocol=Protocol.TOOLBOX,
   ) as toolbox:
     toolset = await toolbox.load_toolset()
     # ...
@@ -281,3 +283,5 @@ contain the specific error message needed to diagnose the problem.
   Manager, it means the Toolbox service account is missing permissions.
   - Ensure the `toolbox-identity` service account has the **Secret Manager
       Secret Accessor** (`roles/secretmanager.secretAccessor`) IAM role.
+
+- **Cloud Run Connections via IAP:** Currently we do not support Cloud Run connections via [IAP](https://docs.cloud.google.com/iap/docs/concepts-overview). Please disable IAP if you are using it.

docs/en/resources/tools/cloudgda/cloud-gda-query.md

@@ -12,6 +12,9 @@ aliases:
 
 The `cloud-gemini-data-analytics-query` tool allows you to send natural language questions to the Gemini Data Analytics API and receive structured responses containing SQL queries, natural language answers, and explanations. For details on defining data agent context for database data sources, see the official [documentation](https://docs.cloud.google.com/gemini/docs/conversational-analytics-api/data-agent-authored-context-databases).
 
+> [!NOTE]
+> Only `alloydb`, `spannerReference`, and `cloudSqlReference` are supported as [datasource references](https://clouddocs.devsite.corp.google.com/gemini/docs/conversational-analytics-api/reference/rest/v1beta/projects.locations.dataAgents#DatasourceReferences).
+
 ## Example
 
 ```yaml

docs/en/resources/tools/redis/redis.md

@@ -30,6 +30,10 @@ following config for example:
     - name: userNames
       type: array
       description: The user names to be set.  
+      items:
+          name: userName # the item name doesn't matter but it has to exist
+          type: string 
+          description: username
 ```
 
 If the input is an array of strings `["Alice", "Sid", "Bob"]`,  The final command

internal/tools/cloudhealthcare/cloudhealthcarefhirfetchpage/cloudhealthcarefhirfetchpage.go

@@ -103,10 +103,12 @@ func (t Tool) Invoke(ctx context.Context, resourceMgr tools.SourceProvider, para
 	if !ok {
 		return nil, fmt.Errorf("invalid or missing '%s' parameter; expected a string", pageURLKey)
 	}
-
-	tokenStr, err := accessToken.ParseBearerToken()
-	if err != nil {
-		return nil, fmt.Errorf("error parsing access token: %w", err)
+	var tokenStr string
+	if source.UseClientAuthorization() {
+		tokenStr, err = accessToken.ParseBearerToken()
+		if err != nil {
+			return nil, fmt.Errorf("error parsing access token: %w", err)
+		}
 	}
 	return source.FHIRFetchPage(ctx, url, tokenStr)
 }

internal/tools/cloudhealthcare/cloudhealthcarefhirpatienteverything/cloudhealthcarefhirpatienteverything.go

@@ -131,9 +131,12 @@ func (t Tool) Invoke(ctx context.Context, resourceMgr tools.SourceProvider, para
 		return nil, fmt.Errorf("invalid or missing '%s' parameter; expected a string", patientIDKey)
 	}
 
-	tokenStr, err := accessToken.ParseBearerToken()
-	if err != nil {
-		return nil, fmt.Errorf("error parsing access token: %w", err)
+	var tokenStr string
+	if source.UseClientAuthorization() {
+		tokenStr, err = accessToken.ParseBearerToken()
+		if err != nil {
+			return nil, fmt.Errorf("error parsing access token: %w", err)
+		}
 	}
 
 	var opts []googleapi.CallOption

internal/tools/cloudhealthcare/cloudhealthcarefhirpatientsearch/cloudhealthcarefhirpatientsearch.go

@@ -161,9 +161,12 @@ func (t Tool) Invoke(ctx context.Context, resourceMgr tools.SourceProvider, para
 		return nil, err
 	}
 
-	tokenStr, err := accessToken.ParseBearerToken()
-	if err != nil {
-		return nil, fmt.Errorf("error parsing access token: %w", err)
+	var tokenStr string
+	if source.UseClientAuthorization() {
+		tokenStr, err = accessToken.ParseBearerToken()
+		if err != nil {
+			return nil, fmt.Errorf("error parsing access token: %w", err)
+		}
 	}
 
 	var summary bool

internal/tools/cloudhealthcare/cloudhealthcaregetdataset/cloudhealthcaregetdataset.go

@@ -95,9 +95,12 @@ func (t Tool) Invoke(ctx context.Context, resourceMgr tools.SourceProvider, para
 	if err != nil {
 		return nil, err
 	}
-	tokenStr, err := accessToken.ParseBearerToken()
-	if err != nil {
-		return nil, fmt.Errorf("error parsing access token: %w", err)
+	var tokenStr string
+	if source.UseClientAuthorization() {
+		tokenStr, err = accessToken.ParseBearerToken()
+		if err != nil {
+			return nil, fmt.Errorf("error parsing access token: %w", err)
+		}
 	}
 	return source.GetDataset(tokenStr)
 }

internal/tools/cloudhealthcare/cloudhealthcaregetdicomstore/cloudhealthcaregetdicomstore.go

@@ -116,9 +116,12 @@ func (t Tool) Invoke(ctx context.Context, resourceMgr tools.SourceProvider, para
 	if err != nil {
 		return nil, err
 	}
-	tokenStr, err := accessToken.ParseBearerToken()
-	if err != nil {
-		return nil, fmt.Errorf("error parsing access token: %w", err)
+	var tokenStr string
+	if source.UseClientAuthorization() {
+		tokenStr, err = accessToken.ParseBearerToken()
+		if err != nil {
+			return nil, fmt.Errorf("error parsing access token: %w", err)
+		}
 	}
 	return source.GetDICOMStore(storeID, tokenStr)
 }

internal/tools/cloudhealthcare/cloudhealthcaregetdicomstoremetrics/cloudhealthcaregetdicomstoremetrics.go

@@ -116,9 +116,12 @@ func (t Tool) Invoke(ctx context.Context, resourceMgr tools.SourceProvider, para
 	if err != nil {
 		return nil, err
 	}
-	tokenStr, err := accessToken.ParseBearerToken()
-	if err != nil {
-		return nil, fmt.Errorf("error parsing access token: %w", err)
+	var tokenStr string
+	if source.UseClientAuthorization() {
+		tokenStr, err = accessToken.ParseBearerToken()
+		if err != nil {
+			return nil, fmt.Errorf("error parsing access token: %w", err)
+		}
 	}
 	return source.GetDICOMStoreMetrics(storeID, tokenStr)
 }

internal/tools/cloudhealthcare/cloudhealthcaregetfhirresource/cloudhealthcaregetfhirresource.go

@@ -130,9 +130,12 @@ func (t Tool) Invoke(ctx context.Context, resourceMgr tools.SourceProvider, para
 	if !ok {
 		return nil, fmt.Errorf("invalid or missing '%s' parameter; expected a string", idKey)
 	}
-	tokenStr, err := accessToken.ParseBearerToken()
-	if err != nil {
-		return nil, fmt.Errorf("error parsing access token: %w", err)
+	var tokenStr string
+	if source.UseClientAuthorization() {
+		tokenStr, err = accessToken.ParseBearerToken()
+		if err != nil {
+			return nil, fmt.Errorf("error parsing access token: %w", err)
+		}
 	}
 	return source.GetFHIRResource(storeID, resType, resID, tokenStr)
 }

internal/tools/cloudhealthcare/cloudhealthcaregetfhirstore/cloudhealthcaregetfhirstore.go

@@ -116,9 +116,12 @@ func (t Tool) Invoke(ctx context.Context, resourceMgr tools.SourceProvider, para
 	if err != nil {
 		return nil, err
 	}
-	tokenStr, err := accessToken.ParseBearerToken()
-	if err != nil {
-		return nil, fmt.Errorf("error parsing access token: %w", err)
+	var tokenStr string
+	if source.UseClientAuthorization() {
+		tokenStr, err = accessToken.ParseBearerToken()
+		if err != nil {
+			return nil, fmt.Errorf("error parsing access token: %w", err)
+		}
 	}
 	return source.GetFHIRStore(storeID, tokenStr)
 }

internal/tools/cloudhealthcare/cloudhealthcaregetfhirstoremetrics/cloudhealthcaregetfhirstoremetrics.go

@@ -116,9 +116,12 @@ func (t Tool) Invoke(ctx context.Context, resourceMgr tools.SourceProvider, para
 	if err != nil {
 		return nil, err
 	}
-	tokenStr, err := accessToken.ParseBearerToken()
-	if err != nil {
-		return nil, fmt.Errorf("error parsing access token: %w", err)
+	var tokenStr string
+	if source.UseClientAuthorization() {
+		tokenStr, err = accessToken.ParseBearerToken()
+		if err != nil {
+			return nil, fmt.Errorf("error parsing access token: %w", err)
+		}
 	}
 	return source.GetFHIRStoreMetrics(storeID, tokenStr)
 }

internal/tools/cloudhealthcare/cloudhealthcarelistdicomstores/cloudhealthcarelistdicomstores.go

@@ -95,9 +95,12 @@ func (t Tool) Invoke(ctx context.Context, resourceMgr tools.SourceProvider, para
 	if err != nil {
 		return nil, err
 	}
-	tokenStr, err := accessToken.ParseBearerToken()
-	if err != nil {
-		return nil, fmt.Errorf("error parsing access token: %w", err)
+	var tokenStr string
+	if source.UseClientAuthorization() {
+		tokenStr, err = accessToken.ParseBearerToken()
+		if err != nil {
+			return nil, fmt.Errorf("error parsing access token: %w", err)
+		}
 	}
 	return source.ListDICOMStores(tokenStr)
 }

internal/tools/cloudhealthcare/cloudhealthcarelistfhirstores/cloudhealthcarelistfhirstores.go

@@ -95,9 +95,12 @@ func (t Tool) Invoke(ctx context.Context, resourceMgr tools.SourceProvider, para
 	if err != nil {
 		return nil, err
 	}
-	tokenStr, err := accessToken.ParseBearerToken()
-	if err != nil {
-		return nil, fmt.Errorf("error parsing access token: %w", err)
+	var tokenStr string
+	if source.UseClientAuthorization() {
+		tokenStr, err = accessToken.ParseBearerToken()
+		if err != nil {
+			return nil, fmt.Errorf("error parsing access token: %w", err)
+		}
 	}
 	return source.ListFHIRStores(tokenStr)
 }

internal/tools/cloudhealthcare/cloudhealthcareretrieverendereddicominstance/cloudhealthcareretrieverendereddicominstance.go

@@ -127,9 +127,12 @@ func (t Tool) Invoke(ctx context.Context, resourceMgr tools.SourceProvider, para
 	if err != nil {
 		return nil, err
 	}
-	tokenStr, err := accessToken.ParseBearerToken()
-	if err != nil {
-		return nil, fmt.Errorf("error parsing access token: %w", err)
+	var tokenStr string
+	if source.UseClientAuthorization() {
+		tokenStr, err = accessToken.ParseBearerToken()
+		if err != nil {
+			return nil, fmt.Errorf("error parsing access token: %w", err)
+		}
 	}
 	study, ok := params.AsMap()[studyInstanceUIDKey].(string)
 	if !ok {

internal/tools/cloudhealthcare/cloudhealthcaresearchdicominstances/cloudhealthcaresearchdicominstances.go

@@ -140,9 +140,12 @@ func (t Tool) Invoke(ctx context.Context, resourceMgr tools.SourceProvider, para
 	if err != nil {
 		return nil, err
 	}
-	tokenStr, err := accessToken.ParseBearerToken()
-	if err != nil {
-		return nil, fmt.Errorf("error parsing access token: %w", err)
+	var tokenStr string
+	if source.UseClientAuthorization() {
+		tokenStr, err = accessToken.ParseBearerToken()
+		if err != nil {
+			return nil, fmt.Errorf("error parsing access token: %w", err)
+		}
 	}
 
 	opts, err := common.ParseDICOMSearchParameters(params, []string{sopInstanceUIDKey, patientNameKey, patientIDKey, accessionNumberKey, referringPhysicianNameKey, studyDateKey, modalityKey})

internal/tools/cloudhealthcare/cloudhealthcaresearchdicomseries/cloudhealthcaresearchdicomseries.go

@@ -138,9 +138,12 @@ func (t Tool) Invoke(ctx context.Context, resourceMgr tools.SourceProvider, para
 	if err != nil {
 		return nil, err
 	}
-	tokenStr, err := accessToken.ParseBearerToken()
-	if err != nil {
-		return nil, fmt.Errorf("error parsing access token: %w", err)
+	var tokenStr string
+	if source.UseClientAuthorization() {
+		tokenStr, err = accessToken.ParseBearerToken()
+		if err != nil {
+			return nil, fmt.Errorf("error parsing access token: %w", err)
+		}
 	}
 
 	opts, err := common.ParseDICOMSearchParameters(params, []string{seriesInstanceUIDKey, patientNameKey, patientIDKey, accessionNumberKey, referringPhysicianNameKey, studyDateKey, modalityKey})

internal/tools/cloudhealthcare/cloudhealthcaresearchdicomstudies/cloudhealthcaresearchdicomstudies.go

@@ -133,9 +133,12 @@ func (t Tool) Invoke(ctx context.Context, resourceMgr tools.SourceProvider, para
 	if err != nil {
 		return nil, err
 	}
-	tokenStr, err := accessToken.ParseBearerToken()
-	if err != nil {
-		return nil, fmt.Errorf("error parsing access token: %w", err)
+	var tokenStr string
+	if source.UseClientAuthorization() {
+		tokenStr, err = accessToken.ParseBearerToken()
+		if err != nil {
+			return nil, fmt.Errorf("error parsing access token: %w", err)
+		}
 	}
 	opts, err := common.ParseDICOMSearchParameters(params, []string{studyInstanceUIDKey, patientNameKey, patientIDKey, accessionNumberKey, referringPhysicianNameKey, studyDateKey})
 	if err != nil {